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Finding the Fourth Proportional to 91,608.84, 137,179.98 and 60,349.32

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Solution

The fourth proportional to 91,608.84, 137,179.98 and 60,349.32 is: 90,370.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,608.84 : 137,179.98 = 60,349.32 : x
  2. Step 2: Convert to fraction form
    91,608.84/137,179.98 = 60,349.32/x
  3. Step 3: Cross multiply
    91,608.84x = 137,179.98 × 60,349.32
  4. Step 4: Simplify right side
    91,608.84x = 8,278,718,510.61
  5. Step 5: Solve for x
    x = 8,278,718,510.61/91,608.84
  6. Step 6: Final answer
    x = 90,370.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.